Acrobat Pro 7, Adobe Reader 8, and Filled out forms

My head is spinning with all the "Acrobat features" that seem to be in
Acrobat, but actually aren't. At least not in the version I always seem to have.
I wish Adobe would be more diligent in explaining what features are are in which
version and what features are in the Windows version that aren't in the Mac
version.

I'll do a search for a particular question. Get an answer of Yes, Acrobat can do
that. Only to find out (through trial and error and usually not the article I'm
reading) that I can't do what I what I want in the version I have.

To my question: We are using Acrobat 7 (CS2) to make forms for people to fill
out and return to us. The people filling out the forms will mostly be in Adobe
Reader 8.

How can we get those folks to send us the filled out form? I have yet to get
that to work. I have Reader 8 on my machine and when I use the Submit Button
method, Reader tells me SendMail can't recognize my mail client, but then gives
me no way of fixing that? Where are SendMail preferences? SendMail isn't even in
the Help menu!

SendMail is a part of Windows. You have a default client set by
Windows.

But this really shows by "submitting by email" is just a toy for
testing, not something to use for your final form. Forms, all forms,
should be submitted to a web server, where a script written by a web
programmer does te job.

So, on a Mac I'm getting a Windows message?

Adobe should expand on the usefulness of forms a bit before we all go flying off
and attempt to use them.

How? I tried that myself, but the form data isn't saved.

(I don't understand the 500 limit, but that's another topic.)

There's a whole Pro7/Reader8/Mac/PC thing that's screwing everything up, I
think.